A REPORT 



OP 



MICROSCOPICAL AND PHYSIOLOGICAL RESEARCHES 



INTO THE 



NATURE OF THE AGENT OR AGENTS PRODUCING 



CHOLERA.* 



(second series.) 



BY 



T. R. LEWIS, M.B., and D. D. CUNNINGHAM, M.B. 



1.— MICROSCOPIC EXAMINATIONS OF BLOOD. 



The question of the microscopic characters presented by the blood in cholera 

 is reverted to in the present report, not because we have to make any material 

 modifications in our former statements, or to record any additional phenomena of any 

 great importance, but as the features previously described as characterising the blood 

 in this disease were by no means such as the views, at present widely prevalent, 

 relative to the causes and methods of diffusion of epidemic disease would have led 

 us to expect, it has been considered advisable to examine the question very carefully 

 again. 



Before entering on the discussion of the phenomena of any morbid condition, as 

 we have previously pointed out, it is manifestly requisite that a healthy standard with 

 which they may be compared should be obtained, and if any important deviations 

 from this standard be observed, these again must be compared with those which 

 occur in connection with other diseased conditions. This method of observation has 

 been followed in the present instance, and the results are stated in similar order — 

 the standard phenomena of healthy blood being considered first, those of the disease 



* Being one of the Appendices to the Tenth Annual Report of the Sanitary Cointnissioner with the 

 Government of India, ] 87-1. 



